3.2.6 CHECKING FAN BELT
CHECKING AND MAINTAINING THE BELT
Rotating parts such as the fan and belt could catch your body part, resulting in severe personal
injury.
Stop rotation completely before maintenance.
2
1
3
Check the fan belts for their tension, wear and damage.
Insufficient belt tension may cause a battery charge failure, engine overheating, or early wear of the
belt. On the other hand, excess belt tension may cause damage to the bearing or belt.
To check the belt tension, press on the center of the belt with your thumb. If the deflection falls within
the range shown in the table, it is normal.
For inspection and adjustment procedure for each belt, see "250 HOUR (3-MONTH) INSPECTION &
MAINTENANCE PROCEDURES" in Chapter 4.
1. Attaching nut
2. Adjusting bolt
3. Adjusting bolt
Belt
Tension of new belt
Tension of belt in use
Pushing force
Fan
8 to 12 mm
(0.32 to 0.47 inch)
10 to 14 mm
(0.39 to 0.55 inch)
98 N
(22 lbf)
"Belt in use" refers to the belt that has been used for five or more minutes since it is attached to the
engine and the engine starts running.
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3. MACHINE OPERATION
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